Temporary dips are very common in bull runs, that's the way the market works. After a big run there is always a small correction, and after that comes the next run. Don't be afraid and hodl your coins.
That's true the price of bitcoin si not stable, sometimes fall and up. Being a bitcoin holder you need also to take a risk, if you buy or sell it. The success of your patience is depends on what you exert efforts. So the decision depends upon you.